In 1934, scientist Carl Sagan was born in Brooklyn, N.Y. After earning bachelor and master's degrees at Cornell, Sagan earned a double doctorate at the University of Chicago in 1960. He became profess…
Carlo Rovelli is an Italian theoretical physicist and writer who has worked in Italy and the USA, and currently works in France. His work is mainly in the field of quantum gravity, where he is among t…
Alex Pavesi lives in London, where he writes full time. He previously worked as a software engineer and before that obtained a PhD in Mathematics. He enjoys puzzles, long walks and recreational lock p…